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Sigurnosni nedostaci jezgre operacijskog sustava

  • Detalji os-a: WN7
  • Važnost: IMP
  • Operativni sustavi: L
  • Kategorije: LSU

SUSE Security Update: Security update for the Linux Kernel

Announcement ID: SUSE-SU-2017:2694-1
Rating: important
References: #1013018 #1024450 #1031358 #1036629 #1037441
#1037667 #1037669 #1037994 #1039803 #1040609
#1042863 #1045154 #1047523 #1050381 #1050431
#1051932 #1052311 #1052370 #1053148 #1053152
#1053802 #1053933 #1054070 #1054076 #1054093
#1054247 #1054706 #1055680 #1056588 #1057179
#1057389 #1058524 #984530
Cross-References: CVE-2017-1000112 CVE-2017-1000251 CVE-2017-10661
CVE-2017-12762 CVE-2017-14051 CVE-2017-14140
CVE-2017-14340 CVE-2017-8831
Affected Products:
SUSE Linux Enterprise Real Time Extension 11-SP4
SUSE Linux Enterprise Debuginfo 11-SP4

An update that solves 8 vulnerabilities and has 25 fixes is
now available.


The SUSE Linux Enterprise 11 SP4 RT kernel was updated to receive various
security and bugfixes.

The following security bugs were fixed:

– CVE-2017-1000251: The native Bluetooth stack was vulnerable to a stack
overflow vulnerability in the processing of L2CAP configuration
responses resulting in remote code execution in kernel space
– CVE-2017-14340: The XFS_IS_REALTIME_INODE macro in fs/xfs/xfs_linux.h
did not verify that a filesystem has a realtime device, which allowed
local users to cause a denial of service (NULL pointer dereference and
OOPS) via vectors related to setting an RHINHERIT flag on a directory
– CVE-2017-14140: The move_pages system call in mm/migrate.c did not check
the effective uid of the target process, enabling a local attacker to
learn the memory layout of a setuid executable despite ASLR
– CVE-2017-14051: An integer overflow in the
qla2x00_sysfs_write_optrom_ctl function in
drivers/scsi/qla2xxx/qla_attr.c allowed local users to cause a denial of
service (memory corruption and system crash) by leveraging root access
– CVE-2017-10661: Race condition in fs/timerfd.c allowed local users to
gain privileges or cause a denial of service (list corruption or
use-after-free) via simultaneous file-descriptor operations that
leverage improper might_cancel queueing (bnc#1053152).
– CVE-2017-12762: In /drivers/isdn/i4l/isdn_net.c a user-controlled buffer
was copied into a local buffer of constant size using strcpy without a
length check which can cause a buffer overflow (bnc#1053148).
– CVE-2017-8831: The saa7164_bus_get function allowed local users to cause
a denial of service (out-of-bounds array access) or possibly have
other impact by changing a certain sequence-number value, aka a “double
fetch” vulnerability (bnc#1037994).
– CVE-2017-1000112: Prevent race condition in net-packet code that could
have been exploited by unprivileged users to gain root

The following non-security bugs were fixed:

– ALSA: Fix Lewisburg audio issue
– Drop commit 96234ae:kvm_io_bus_unregister_dev() should never fail
– Fixup build warnings in drivers/scsi/scsi.c (bsc#1031358)
– NFS: Cache aggressively when file is open for writing (bsc#1053933).
– NFS: Do drop directory dentry when error clearly requires it
– NFS: Do not flush caches for a getattr that races with writeback
– NFS: Optimize fallocate by refreshing mapping when needed (bsc#1053933).
– NFS: invalidate file size when taking a lock (bsc#1053933).
– PCI: fix hotplug related issues (bnc#1054247).
– af_key: do not use GFP_KERNEL in atomic contexts (bsc#1054093).
– avoid deadlock in xenbus (bnc#1047523).
– blacklist 9754d45e9970 tpm: read burstcount from TPM_STS in one 32-bit
– blkback/blktap: do not leak stack data via response ring (bsc#1042863
– cx231xx-audio: fix NULL-deref at probe (bsc#1050431).
– cx82310_eth: use skb_cow_head() to deal with cloned skbs (bsc#1045154).
– fuse: do not use iocb after it may have been freed (bsc#1054706).
– fuse: fix fuse_write_end() if zero bytes were copied (bsc#1054706).
– fuse: fsync() did not return IO errors (bsc#1054076).
– fuse: fuse_flush must check mapping->flags for errors (bsc#1054706).
– gspca: konica: add missing endpoint sanity check (bsc#1050431).
– kabi/severities: Ignore zpci symbol changes (bsc#1054247)
– lib/mpi: mpi_read_raw_data(): fix nbits calculation
– media: platform: davinci: return -EINVAL for VPFE_CMD_S_CCDC_RAW_PARAMS
ioctl (bsc#1050431).
– net: Fix RCU splat in af_key (bsc#1054093).
– powerpc/fadump: add reschedule point while releasing memory (bsc#1040609
– powerpc/fadump: avoid duplicates in crash memory ranges (bsc#1037669
– powerpc/fadump: provide a helpful error message (bsc#1037669
– powerpc/prom: Increase minimum RMA size to 512MB (bsc#984530,
– powerpc/slb: Force a full SLB flush when we insert for a bad EA
– reiserfs: fix race in readdir (bsc#1039803).
– s390/pci: do not cleanup in arch_setup_msi_irqs (bnc#1054247).
– s390/pci: fix handling of PEC 306 (bnc#1054247).
– s390/pci: improve error handling during fmb (de)registration
– s390/pci: improve error handling during interrupt deregistration
– s390/pci: improve pci hotplug (bnc#1054247).
– s390/pci: improve unreg_ioat error handling (bnc#1054247).
– s390/pci: introduce clp_get_state (bnc#1054247).
– s390/pci: provide more debug information (bnc#1054247).
– scsi: avoid system stall due to host_busy race (bsc#1031358).
– scsi: close race when updating blocked counters (bsc#1031358).
– ser_gigaset: return -ENOMEM on error instead of success (bsc#1037441).
– supported.conf: clear mistaken external support flag for cifs.ko
– tpm: fix a kernel memory leak in tpm-sysfs.c (bsc#1050381).
– uwb: fix device quirk on big-endian hosts (bsc#1036629).
– xfs: fix inobt inode allocation search optimization (bsc#1013018).

Patch Instructions:

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:

– SUSE Linux Enterprise Real Time Extension 11-SP4:

zypper in -t patch slertesp4-linux-kernel-rt-13307=1

– SUSE Linux Enterprise Debuginfo 11-SP4:

zypper in -t patch dbgsp4-linux-kernel-rt-13307=1

To bring your system up-to-date, use “zypper patch”.

Package List:

– SUSE Linux Enterprise Real Time Extension 11-SP4 (x86_64):


– SUSE Linux Enterprise Debuginfo 11-SP4 (x86_64):



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AutorDanijel Kozinovic
Cert idNCERT-REF-2017-10-0059-ADV
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